325 lines
9.2 KiB
Go
325 lines
9.2 KiB
Go
package postgres
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import (
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"context"
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"fmt"
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"sync"
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"sync/atomic"
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"testing"
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"time"
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"telesrv/internal/domain"
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)
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// boostClock 是 boost 缓存 TTL 测试用的可推进单调时钟(注入 readmodelcache.Config.Now)。
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type boostClock struct {
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mu sync.Mutex
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t int64
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}
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func newBoostClock(unix int64) *boostClock { return &boostClock{t: unix} }
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func (b *boostClock) now() time.Time {
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b.mu.Lock()
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defer b.mu.Unlock()
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return time.Unix(b.t, 0)
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}
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func (b *boostClock) set(unix int64) {
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b.mu.Lock()
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b.t = unix
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b.mu.Unlock()
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}
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func TestChannelBoostCacheNilDisabled(t *testing.T) {
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if c := NewChannelBoostCache(0, time.Second); c != nil {
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t.Fatalf("max<=0 应返回 nil(禁用)，got %v", c)
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}
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if c := NewChannelBoostCache(16, 0); c != nil {
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t.Fatalf("ttl<=0 应返回 nil(禁用)，got %v", c)
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}
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var nilCache *ChannelBoostCache
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peer := domain.Peer{Type: domain.PeerTypeChannel, ID: 10}
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nilCache.put(1, peer, 2)
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nilCache.putPeerTotal(peer, 2)
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nilCache.delete(1, peer)
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nilCache.deletePeerTotal(peer)
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nilCache.deleteUser(1)
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nilCache.flush()
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if _, ok := nilCache.get(1, peer); ok {
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t.Fatalf("nil 缓存 get 必须返回 ok=false")
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}
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if _, ok := nilCache.getPeerTotal(peer); ok {
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t.Fatalf("nil 缓存 getPeerTotal 必须返回 ok=false")
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}
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}
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func TestChannelBoostCachePutGetExpireDelete(t *testing.T) {
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clk := newBoostClock(1000)
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c := newChannelBoostCache(16, 10*time.Second, clk.now)
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peer := domain.Peer{Type: domain.PeerTypeChannel, ID: 10}
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otherPeer := domain.Peer{Type: domain.PeerTypeChannel, ID: 11}
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c.put(100, peer, 3)
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c.put(100, otherPeer, 1)
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clk.set(1005) // < 1000+10:仍有效
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if got, ok := c.get(100, peer); !ok || got != 3 {
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t.Fatalf("get before ttl = %d ok=%v, want 3/true", got, ok)
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}
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if got, ok := c.get(100, otherPeer); !ok || got != 1 {
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t.Fatalf("other before ttl = %d ok=%v, want 1/true", got, ok)
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}
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clk.set(1010) // == 1000+10:expiresAt<=now 视为过期
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if _, ok := c.get(100, peer); ok {
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t.Fatalf("expiresAt==now 应视为过期")
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}
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// delete 精确失效(在新鲜窗口内重写两个 peer,使其 expireAt=1020)。
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c.put(100, peer, 4)
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c.put(100, otherPeer, 1)
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c.delete(100, peer)
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clk.set(1011)
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if _, ok := c.get(100, peer); ok {
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t.Fatalf("delete 后不应命中")
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}
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if got, ok := c.get(100, otherPeer); !ok || got != 1 {
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t.Fatalf("delete exact 不应影响其它频道: %d ok=%v", got, ok)
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}
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c.deleteUser(100)
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if _, ok := c.get(100, otherPeer); ok {
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t.Fatalf("deleteUser 后同用户其它频道也应失效")
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}
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}
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func TestChannelBoostCachePeerTotalPutGetExpireDelete(t *testing.T) {
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clk := newBoostClock(1000)
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c := newChannelBoostCache(16, 10*time.Second, clk.now)
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peer := domain.Peer{Type: domain.PeerTypeChannel, ID: 10}
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otherPeer := domain.Peer{Type: domain.PeerTypeChannel, ID: 11}
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c.putPeerTotal(peer, 30)
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c.putPeerTotal(otherPeer, 11)
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clk.set(1005)
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if got, ok := c.getPeerTotal(peer); !ok || got != 30 {
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t.Fatalf("peer total before ttl = %d ok=%v, want 30/true", got, ok)
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}
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if got, ok := c.getPeerTotal(otherPeer); !ok || got != 11 {
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t.Fatalf("other peer total before ttl = %d ok=%v, want 11/true", got, ok)
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}
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clk.set(1010)
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if _, ok := c.getPeerTotal(peer); ok {
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t.Fatalf("peer total expiresAt==now 应视为过期")
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}
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c.putPeerTotal(peer, 31)
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c.putPeerTotal(otherPeer, 12)
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c.deletePeerTotal(peer)
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clk.set(1011)
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if _, ok := c.getPeerTotal(peer); ok {
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t.Fatalf("deletePeerTotal 后不应命中")
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}
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if got, ok := c.getPeerTotal(otherPeer); !ok || got != 12 {
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t.Fatalf("deletePeerTotal 不应影响其它频道: %d ok=%v", got, ok)
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}
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}
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func TestChannelBoostCacheCapFlush(t *testing.T) {
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c := NewChannelBoostCache(2, time.Minute)
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ch := func(id int64) domain.Peer { return domain.Peer{Type: domain.PeerTypeChannel, ID: id} }
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c.put(1, ch(1), 1)
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c.put(1, ch(2), 1)
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c.put(1, ch(3), 1) // 超 cap=2:LRU 单条驱逐最旧的 ch1,而非整表清空
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if _, ok := c.get(1, ch(1)); ok {
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t.Fatalf("超限后最旧条目(ch1)应被驱逐")
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}
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if _, ok := c.get(1, ch(2)); !ok {
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t.Fatalf("LRU 单条驱逐应保留次新条目(ch2),证明非整表 flush")
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}
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if got, ok := c.get(1, ch(3)); !ok || got != 1 {
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t.Fatalf("最新条目(ch3)应在: %d ok=%v", got, ok)
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}
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c.flush()
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if _, ok := c.get(1, ch(3)); ok {
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t.Fatalf("flush 后不应命中")
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}
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}
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func TestChannelBoostCacheSingleflightsColdLoad(t *testing.T) {
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ctx := context.Background()
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c := NewChannelBoostCache(16, time.Minute)
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peer := domain.Peer{Type: domain.PeerTypeChannel, ID: 42}
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var calls atomic.Int32
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started := make(chan struct{})
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release := make(chan struct{})
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var once sync.Once
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load := func() (int, error) {
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calls.Add(1)
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once.Do(func() { close(started) })
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<-release
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return 7, nil
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}
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const goroutines = 16
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var wg sync.WaitGroup
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errs := make(chan error, goroutines)
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wg.Add(goroutines)
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for i := 0; i < goroutines; i++ {
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go func() {
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defer wg.Done()
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boosts, err := c.getOrLoad(ctx, 100, peer, load)
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if err != nil {
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errs <- err
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return
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}
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if boosts != 7 {
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errs <- fmt.Errorf("boosts = %d, want 7", boosts)
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}
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}()
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}
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<-started
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time.Sleep(20 * time.Millisecond)
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close(release)
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wg.Wait()
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close(errs)
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for err := range errs {
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if err != nil {
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t.Fatal(err)
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}
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}
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if got := calls.Load(); got != 1 {
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t.Fatalf("load calls = %d, want 1", got)
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}
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if boosts, err := c.getOrLoad(ctx, 100, peer, load); err != nil || boosts != 7 {
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t.Fatalf("cached getOrLoad = %d/%v, want 7/nil", boosts, err)
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}
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if got := calls.Load(); got != 1 {
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t.Fatalf("cache hit called load again: calls=%d", got)
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}
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}
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func TestChannelBoostCachePeerTotalSingleflightsColdLoad(t *testing.T) {
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ctx := context.Background()
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c := NewChannelBoostCache(16, time.Minute)
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peer := domain.Peer{Type: domain.PeerTypeChannel, ID: 42}
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var calls atomic.Int32
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started := make(chan struct{})
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release := make(chan struct{})
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var once sync.Once
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load := func() (int, error) {
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calls.Add(1)
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once.Do(func() { close(started) })
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<-release
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return 70, nil
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}
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const goroutines = 16
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var wg sync.WaitGroup
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errs := make(chan error, goroutines)
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wg.Add(goroutines)
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for i := 0; i < goroutines; i++ {
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go func() {
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defer wg.Done()
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boosts, err := c.getPeerTotalOrLoad(ctx, peer, load)
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if err != nil {
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errs <- err
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return
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}
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if boosts != 70 {
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errs <- fmt.Errorf("peer boosts = %d, want 70", boosts)
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}
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}()
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}
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<-started
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time.Sleep(20 * time.Millisecond)
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close(release)
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wg.Wait()
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close(errs)
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for err := range errs {
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if err != nil {
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t.Fatal(err)
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}
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}
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if got := calls.Load(); got != 1 {
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t.Fatalf("peer total load calls = %d, want 1", got)
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}
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if boosts, err := c.getPeerTotalOrLoad(ctx, peer, load); err != nil || boosts != 70 {
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t.Fatalf("cached peer total = %d/%v, want 70/nil", boosts, err)
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}
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if got := calls.Load(); got != 1 {
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t.Fatalf("peer total cache hit called load again: calls=%d", got)
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}
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}
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func TestReadModelChangeListenerInvalidatesChannelBoostCache(t *testing.T) {
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boosts := NewChannelBoostCache(16, time.Minute)
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peer := domain.Peer{Type: domain.PeerTypeChannel, ID: 7}
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otherPeer := domain.Peer{Type: domain.PeerTypeChannel, ID: 8}
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boosts.put(100, peer, 2)
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boosts.put(100, otherPeer, 3)
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boosts.put(200, peer, 4)
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boosts.putPeerTotal(peer, 10)
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boosts.putPeerTotal(otherPeer, 11)
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listener := NewReadModelChangeListener("", ReadModelCacheSet{ChannelBoosts: boosts}, nil)
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listener.handlePayload(`{"model":"channel_self_boosts","owner_user_id":100,"peer_type":"channel","peer_id":7}`)
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if _, ok := boosts.get(100, peer); ok {
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t.Fatalf("channel_self_boosts 事件应失效精确 user/channel")
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}
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if _, ok := boosts.getPeerTotal(peer); ok {
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t.Fatalf("channel_self_boosts 事件应失效 channel total")
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}
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if got, ok := boosts.get(100, otherPeer); !ok || got != 3 {
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t.Fatalf("其它频道不应失效: %d ok=%v", got, ok)
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}
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if got, ok := boosts.get(200, peer); !ok || got != 4 {
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t.Fatalf("其它用户不应失效: %d ok=%v", got, ok)
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}
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if got, ok := boosts.getPeerTotal(otherPeer); !ok || got != 11 {
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t.Fatalf("其它频道 total 不应失效: %d ok=%v", got, ok)
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}
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}
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func TestChannelStoreInvalidateBoostCacheForUserAndPeers(t *testing.T) {
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boosts := NewChannelBoostCache(16, time.Minute)
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store := &ChannelStore{boostCache: boosts}
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oldPeer := domain.Peer{Type: domain.PeerTypeChannel, ID: 7}
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newPeer := domain.Peer{Type: domain.PeerTypeChannel, ID: 8}
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otherPeer := domain.Peer{Type: domain.PeerTypeChannel, ID: 9}
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boosts.put(100, oldPeer, 1)
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boosts.put(100, newPeer, 1)
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boosts.put(200, oldPeer, 1)
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boosts.putPeerTotal(oldPeer, 10)
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boosts.putPeerTotal(newPeer, 11)
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boosts.putPeerTotal(otherPeer, 12)
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store.invalidateBoostCacheForUserAndPeers(100, map[domain.Peer]struct{}{
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oldPeer: {},
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newPeer: {},
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})
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if _, ok := boosts.get(100, oldPeer); ok {
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t.Fatalf("当前用户 old peer self boost cache 应失效")
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}
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if _, ok := boosts.get(100, newPeer); ok {
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t.Fatalf("当前用户 new peer self boost cache 应失效")
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}
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if got, ok := boosts.get(200, oldPeer); !ok || got != 1 {
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t.Fatalf("其它用户 self boost cache 不应失效: %d ok=%v", got, ok)
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}
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if _, ok := boosts.getPeerTotal(oldPeer); ok {
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t.Fatalf("old peer total cache 应失效")
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}
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if _, ok := boosts.getPeerTotal(newPeer); ok {
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t.Fatalf("new peer total cache 应失效")
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}
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if got, ok := boosts.getPeerTotal(otherPeer); !ok || got != 12 {
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t.Fatalf("其它频道 total cache 不应失效: %d ok=%v", got, ok)
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}
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}
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